Paul mauser



(No Model.)

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(No Model.) 2 Sheets-Sheet 2.

P. MAUSER. SHELL LXTRAGTOL FOR BOLT GUNS.

No. 477,671. Patented June Z8, 1892.

CgMX/W.

UNITED STATES PATENT OFFICE.

PAUL MAUSER, OF OBERNDORF-ON-THE-NECKAR, GERMANY, ASSIGNOR TOVAFFENFABRIK MAUSER, OF SAME PLACE.

SHELL-EXTRACTOR FOR BOLT-GUNS.

SPECIFICATION forming part of Letters Patent No. 477,671, dated June 28,1892.

Application led February 29, 1892. Serial No. 423,237. (No model.)

v To all whom it may concern,.-

Be it known that I, PAUL MAUSER, a subject of the King of lVrtemberg,German Emperor, residing in Oberndorf-on-the-Neckar, Kingdom ofWrtemberg, German Empire, have invented certain new and usefulImprovements in Cartridge-Shell Extractors for Breech-Loading Bolt-Guns,of which the following is a specification.

This invention relates to the connection of the extractor to the boltsof bolt-guns in which the bolt has an oscillatory and also areciprocating movement and in which the extractor consists of anelongated metallic piece adapted to rest against the side of the boltand within a longitudinal groove in the breechcase, the extractor beingconnected to a ring swiveled to the bolt in such manner that the lattercan be rotated independently of the extractor, while the extractor willbe coinpelled to follow the longitudinal reciprocating movements of thebolt. One such construction of breech-loading bolt-gun with itsextractor is illustrated in my United States patent, No. y167,180, datedJanuary 19, 1892.

My present invention constitutes an improved connection between the ringand extractor in guns of this class, and aims to provide an improvedconnection, which will be cheaper and more convenient of constructionand operation than is that shown in my said patent. To this end incarrying out my invention in its preferred form I construct the ringengaging the bolt with laterally-projecting shoulders, and I constructthe extractor with similar shoulders adapted to engage the shoulders onthe ring by the longitudinal movement of the extractor relatively to thering, said shoulders being adapted when the parts are in the correctrelative position to lock the extractor and ring together.

In the accompanying drawings, which illustrate my invention as appliedto the bolt of a gun of the class shown in my said patent, Figure 1 is aside elevation of the bolt and extractor, the latter being in theposition relatively to the bolt which it occupies when the bolt is inthe closed position in the breechcase of a gun. Fig. 2 is a sideelevation of the bolt, its handle being in section, showing the ring andextractor in section, the bolt being shown as turned ninety degrees fromthe position shown in Fig. 1, this being the position occupied by thebolt when it is turned to open the breech of the gun. Fig. 3 is a sideelevation of the extractor, looking toward its inner side. Fig.lisafront elevation of Fig. 1. Fig. 5 is a cross-section of Fig. 1 onthe line 5 5. Fig. 6 is a cross-section of Fig. 2 on the line 6 6. Fig.7 is a side elevation of the bolt turned one hundred and eighty degreesfrom the position shown in Fig. 1, the extractor being shown in section.This is the position occupied by the parts When the extractor is to beseparated from the bolt, the arrow in this figure showing the directionof pressure on the extractor for disengaging it from its ring. Fig. 8 isa side elevation of. the bolt, partly broken out, shown in the sameposition as in Fig. 1, the extractor being shown in section in theposition occupied as it is being attached to the bolt, the arrowsindicating the direction of pressure on the extractor to force it intocomplete engagement with the ring. Fig. 9 is a side elevation of thebolt, partly in axial section, showing a modified construction. Fig. 10is a cross-section thereof on the line 10 10. Fig. 1l is a Viewcorresponding to Fig. 9, but showing another modification. Fig. 12 is across-section thereof on the line 12 12, and Fig. 13 is an inner faceview of the extractor shown in Fig. 11.

Referring to the drawings, let a designate the bolt as a whole, b thering, and f the extractor. The bolt a may be of any suitable or knownconstruction, that shown having the usual handle for manipulating it atthe rear end, a cartridge-recess z' at the front end, recoil-lugs @3&2at the front end, a peripheral groove c near its front end, and anannular groove surrounding its body.

The bolt (shown in Figs. l to S,inclusive) is made of one integral pieceof metal, into which the annular groove is formed.

According to my invention the ring Z), which may be of any knownconstruction that will it and relatively engage the annular groove ofthe lbolt o., is provided with lateral shoulders b', and the extractorf, which consists, as usual, of an elongated metallic piece, is providedwith corresponding lateral shoulders f3, constructed to engage with theshoul- IOO I ders of the ring b, and thereby lock the parts together.The ring Zi (shown in Figs. l to 8, inclusive) is a split ring havingits ends extending outwardly and thence backwardly over the body of thering to form the shoulders Z1', as best seen in Fig. 6, while in thisconstruction the shoulders f3 on the extractor project inwardly from theside walls thereof and embrace the ends or shoulders b of the ringexteriorly, whereby the expansion of the ring is prevented when theextractor is locked thereto. The extractor f is formed with the usualrearwardly-extending elastic tail bearing against the side of the boltand at its front end with the usual `claw f for engaging the base of thecartridge-shell, and with the usual cross-rib f2, adapted to tit intothe groove c at the front of the bolt a, for recei-ving and sustainingthe longitudinal strains occurring during the use of the extractor. Itis also recessed rearwardly of this rib, as heretofore, to make room forthe recoil-projection a3.

According to my invention the extractor is constructed with a recess fIlat the rear of the shoulders f3 in order that the shoulders b of thering b may enter this recess, and thus be brought opposite to theshoulders of the extractor in such manner that by moving the latterlongitudinally relatively to the ring the shoulders can be brought intoengagement with each other. Vhen the extractor and ring are thus inengagement, the disengagement is normally prevented by the engagement ofthe cross-rib f2 with the groove c of the bolt, which serves to preventlongitudinal movement of the extractor relatively to the bolt and ring,and consequently prevents, the disengagement of the parts.

In separating the extractor f from the bolt the latter is turned untilthe extractor rest-s with its rib f2 against the portion of the forwardend of the bolt, which is not grooved, as seen in Fig. 7, whereupon bypressure with the thumb against the tail of the extractor in thedirection indicated by the arrow in this figure the extractor can bemoved forward until its shoulders f3 pass from engagement with theshoulders b' ot the ring, whereupon the extractor will be free.

To attach the extractor, which can be most easily done when the partsare in the position shown in Fig. 8, the ring h will be pressed into theannular groove until its hooks or shoulders b are brought sufficientlytogether, whereupon the extractor f will be placed with its recess f4over the hooks ZJ', when by sliding the extractor rearwardly itsshoulders f3 will embrace the shoulders b', and on sliding it home itscross-rib f2 will snap into the groove c, and thus prevent its furtherlongitudinal movement in either direction, whereupon the parts wi ll belocked together.

Then a solid ring h is used instead of a split ring, the invention maybe applied in either the form shown in Figs. 9 and l0 or in that shownin Figs. 11 to 13, inclusive. In

the former the ring b (here lettered b2) is' shown as solid withoutwardlyextending shoulders h', (here lettered 193,) and the bolt a isshown as made of two pieces, the usual body a, which is internallyscrew-threaded, and a head a', having an externally-screwthreaded shankengaging the screw-thread in said body and locked in place bya key d,the parts being constructed to leave an annular groove surrounding thebolt for the reception of the ring b.

In the construction shown in Figs. 9 and 10 the extractor is identicalwith that previously described as to Figs. l to 8, inclusive.

The bolt shown in Figs. l1 to 13, inclusive, is made of two parts, theusual body having an externally-screw-threaded shank and aninternally-screw-threaded head ct,secured to the body by being screwedover its shank and lockedv in position by a key d. The ring h (herelettered b4) in this instance is solid,but has inwardly-projecting hooksor shoulders b', (here lettered bi) and the extractor f hasoutwardly-extending shoulders f3,(here lettered f5,) adapted to passbeneath and between the shoulders b5, as best seen in Fig. l2.

It will be seen that my invention provides a simple and improvedconnection between the extractor and the ring on the bolt, which can beeasily made, which will not permit the accidental separation of theparts, and which can be easily manipulated to separate or attach theextractor to the bolt.

Vhat I claim is, in cartridge-shell extractors for breech-loadingbolt-guns, the follow ing defined novel features and combinations,substantially as hereinbefore set forth,`

namely:

l. The combination, with an oscillatory bolt having a groove c near itsfront end and constructed with an annular groove surrounding its body,of a ring engaging said annular groove in the bolt and havinglaterally-projecting shoulders, and a shell-extractor consisting of anelongated metal body adapted to rest against the side of the bolt,having an extracting-claw at its front end, a cross-rib f2 rearwardlythereof and adapted to engage said groove c, and lateral shouldersconstructed to IOO 'IIO

engage the lateral shoulders of said ring, and Y thereby to lock saidextractor to said bolt.

2. The combination, with an oscillatory bolt having an annular groovesurrounding its body, of a ring engaging said annular groove and havingprojecting shoulders b', and a shellextractor consisting of an elongatedmetal body adapted to rest against the side of the bolt, having anextracting-claw at its front end and constructed with shoulders f3,adapted to engage the shoulders on said ring when the extractor is movedlongitudinally relatively to said bolt, and thereby to lock said partstogether, and means on said extractor and bolt constructed to normallyprevent the longitudinal movement of the former relatively to thelatter, whereby said parts are normally locked together.

b of said ring, and thereby to loekthe said extractor to said bolt andto prevent the expansion of said ring.

In Witness whereof I have hereunto signed my name in the presence of twosubscribing z 5 Witnesses.

PAUL MAUSER.

Witnesses:

HENRY M. I-IEYMANN, ARTHUR S. BRADLEY.

